a{
    text-decoration:none;
    color:#333;
}

#game {
    width: 800px;
    height: 600px;
    border: 2px solid;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

#game .sky {
    width: 1600px;
    height: 600px;
    background: url('image/sky.png');
    position: absolute;
    left: 0;
    top: 0;
}

#game .land {
    width: 1600px;
    height: 112px;
    background: url('image/land.png');
    position: absolute;
    left: 0;
    bottom: 0;
}

#game .bird {
    width: 33px;
    height: 26px;
    background: url('image/bird.png');
    position: absolute;
    left: 200px;
    top: 150px;
    z-index: 1;
    background-position: -8px -10px;
}

#game .pipeup {
    background: url("image/pipeDown.png") no-repeat left bottom;
    width: 52px;
    height: 200px;
    position: absolute;
    top: 0;
    right: 0;
}

#game .pipedown {
    background: url("image/pipeUp.png") no-repeat;
    width: 52px;
    height: 200px;
    position: absolute;
    bottom: 112px;
    right: 0;
}

.msg {
    text-align: center;
}